US3217435A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Page turner
Assignee: Individual
•
Filing: 1963-05-16
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Granted: 1965-11-16
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Expires: 1983-05-16
Abstract
No abstract record available.
Inventors
- 👤 Alois F Steiert
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:01
CPC Classifications
B; B42; B42D; B42D9/00; B42D9/04; B42D9/08; G; G09; G09F; G09F11/00; G09F11/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
398 words
A PAGE TURNER COMPRISING AN UPRIGHT FRAME HAVING A DISPLAY OPENING DEFINED IN PART BY UPRIGHT SIDE EDGE PORTIONS, AN UPRIGHT SHAFT JOURNALLED ON SAID FRAME IN BACK OF SAID DISPLAY OPENING, MIDWAY BETWEEN SAID UPRIGHT SIDE EDGE PORTIONS, A MOTOR ON SAID FRAME GEARED TO ROTATE SAID SHAFT AT A SPEED FOR OBSERVATION OF THE PAGES TO BE TURNED, COLLARS ON THE UPPER AND LOWER END PORTIONS OF SAID SHAFT, HAVING ALIGNED OPPOSED SOCKETS FOR PAGE CARRYING WIRES, THE SOCKETS IN THE LOWER COLLAR BEING CLOSED AT THE BOTTOM TO SUPPORT WIRES IN DEFINITE POSITION THEREIN AND THE ALIGNED SOCKETS IN THE UPPER COLLAR BEING VERTICALLY EXTENDED TO PERMIT LIFTING OF THE WIRES SUPPORTED IN THE LOWER SOCKETS, WIRES A LENGTH GREATER THAN THE DISTANCE BETWEEN OPPOSED SOCKETS, SAID WIRES ENGAGED IN SUPPORTED POSITION IN SAID LOWER SOCKETS AND FREE FOR VERTICAL MOVEMENT IN THE UPPER SOCKETS SUFFICIENT TO EFFECT CLEARING OF THE LOWER ENDS OF THE WIRES FROM THE LOWER SOCKETS, WHEREBY SAID WIRES WILL BE RETAINED IN ALIGNED SOCKETS BUT MAY BE REMOVED BY FIRST LIFTING THEM TO CLEAR THE LOWER SOCKETS AND THEN LOWERING THEM AWAY FROM THE UPPER SOCKETS, ENABLING READY REMOVAL AND REPLACEMENT OF THE WIRES, DISPLAY PAGES OF STIFF, FLAT, FLEXIBLE AND BENDABLE SPRINGY SHEET PLASTIC CARRIED BY SAID WIRES, SAID PAGES BEING OF LESS HEIGHT THAN THE VERTICAL EXTENT OF SAID OPENING AND OF A WIDTH TO SLIGHTLY OVERLAP SAID OPPOSITE SIDE EDGE PORTIONS OF THE OPENING, REARWARDLY AND FORWARDLY FACING STOP STRIPS OF PLASTIC PAGE RESTRAINING MATERIAL ON SAID OPPOSITE EDGE PORTIONS OF THE DISPLAY OPENING, ENGAGEABLE BY THE FREE EDGES OF THE FORWARDLY AND REARWARDLY TURNING PAGES, AND SAID SOCKETS FOR THE WIRES BEING SPACED CIRCUMFERENTIALLY ON THE COLLARS TO ENGAGE THE WIRE SUPPORTED PORTION OF A PAGE IN BACK OF THE FRONT FORWARDLY TURNING PAGE WHILE THAT PAGE IS STILL HELD IN ENGAGEMENT WITH THE REARWARDLY FACED STOP STRIP TO THEREBY APPLY A BENDING FORCE ON THE BACK OF THE FRONT FORWARDLY TURNING PAGE WHEREBY TO BEND AND TENSION THAT PAGE IN A FORWARDLY TURNING DIRECTION WHILE STILL HELD BY SAID STOP STRIP, ENABLING SAID FRONT PAGE AS IT IS DRAWN CLEAR OF THE STOP STRIP TO SNAP FORWARDLY OF ITS OWN FORCE INTO POSITION AT THE OPPOSITE SIDE OF THE DISPLAY OPENING IN ENGAGEMENT WITH THE FORWARDLY FACING STOP STRIP AT THAT SIDE OF THE OPENING.
Claim 2
Dependent Claim
398 words
A PAGE TURNER COMPRISING AN UPRIGHT FRAME HAVING A DISPLAY OPENING DEFINED IN PART BY UPRIGHT SIDE EDGE PORTIONS, AN UPRIGHT SHAFT JOURNALLED ON SAID FRAME IN BACK OF SAID DISPLAY OPENING, MIDWAY BETWEEN SAID UPRIGHT SIDE EDGE PORTIONS, A MOTOR ON SAID FRAME GEARED TO ROTATE SAID SHAFT AT A SPEED FOR OBSERVATION OF THE PAGES TO BE TURNED, COLLARS ON THE UPPER AND LOWER END PORTIONS OF SAID SHAFT, HAVING ALIGNED OPPOSED SOCKETS FOR PAGE CARRYING WIRES, THE SOCKETS IN THE LOWER COLLAR BEING CLOSED AT THE BOTTOM TO SUPPORT WIRES IN DEFINITE POSITION THEREIN AND THE ALIGNED SOCKETS IN THE UPPER COLLAR BEING VERTICALLY EXTENDED TO PERMIT LIFTING OF THE WIRES SUPPORTED IN THE LOWER SOCKETS, WIRES A LENGTH GREATER THAN THE DISTANCE BETWEEN OPPOSED SOCKETS, SAID WIRES ENGAGED IN SUPPORTED POSITION IN SAID LOWER SOCKETS AND FREE FOR VERTICAL MOVEMENT IN THE UPPER SOCKETS SUFFICIENT TO EFFECT CLEARING OF THE LOWER ENDS OF THE WIRES FROM THE LOWER SOCKETS, WHEREBY SAID WIRES WILL BE RETAINED IN ALIGNED SOCKETS BUT MAY BE REMOVED BY FIRST LIFTING THEM TO CLEAR THE LOWER SOCKETS AND THEN LOWERING THEM AWAY FROM THE UPPER SOCKETS, ENABLING READY REMOVAL AND REPLACEMENT OF THE WIRES, DISPLAY PAGES OF STIFF, FLAT, FLEXIBLE AND BENDABLE SPRINGY SHEET PLASTIC CARRIED BY SAID WIRES, SAID PAGES BEING OF LESS HEIGHT THAN THE VERTICAL EXTENT OF SAID OPENING AND OF A WIDTH TO SLIGHTLY OVERLAP SAID OPPOSITE SIDE EDGE PORTIONS OF THE OPENING, REARWARDLY AND FORWARDLY FACING STOP STRIPS OF PLASTIC PAGE RESTRAINING MATERIAL ON SAID OPPOSITE EDGE PORTIONS OF THE DISPLAY OPENING, ENGAGEABLE BY THE FREE EDGES OF THE FORWARDLY AND REARWARDLY TURNING PAGES, AND SAID SOCKETS FOR THE WIRES BEING SPACED CIRCUMFERENTIALLY ON THE COLLARS TO ENGAGE THE WIRE SUPPORTED PORTION OF A PAGE IN BACK OF THE FRONT FORWARDLY TURNING PAGE WHILE THAT PAGE IS STILL HELD IN ENGAGEMENT WITH THE REARWARDLY FACED STOP STRIP TO THEREBY APPLY A BENDING FORCE ON THE BACK OF THE FRONT FORWARDLY TURNING PAGE WHEREBY TO BEND AND TENSION THAT PAGE IN A FORWARDLY TURNING DIRECTION WHILE STILL HELD BY SAID STOP STRIP, ENABLING SAID FRONT PAGE AS IT IS DRAWN CLEAR OF THE STOP STRIP TO SNAP FORWARDLY OF ITS OWN FORCE INTO POSITION AT THE OPPOSITE SIDE OF THE DISPLAY OPENING IN ENGAGEMENT WITH THE FORWARDLY FACING STOP STRIP AT THAT SIDE OF THE OPENING.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-15 | 1969-05-17 | 1969-11-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-15 | 1973-05-17 | 1973-11-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-15 | 1977-05-17 | 1977-11-16 | $7700.00 | Window Closed / Lapsed |